To make the development environment identical to the production environment, configure your client to override the authoritative DNS server(s) for the commonidtrust.org domain to the development environment.
Currently, the DNS server for VPC-Dev runs on a personal, free t2.micro instance in EC2 and is accessible at 18.104.22.168. You will need a secondary resolver for real addresses, such as 22.214.171.124, 126.96.36.199 (Level3), or 188.8.131.52, or 184.108.40.206(Google).
DNS Client Configuration:
yum -y install bind
Configure /etc/named.conf and the zone file /var/named/masters/commonidtrust.org (see examples attached).
chkconfig named on
named logs to /var/log/messages
This is configured to serve up the A and/or CNAME records for account.commonidtrust.org, helpdesk.commonidtrust.org, and login.commonidtrust.org for the specific VPC environment.